I can't seem to get alpha channels working in FB5 on Intel. (Works fine PPC).

So I have a short program that worked great in FB4 and it establishes the
principle of use of OpenGL alpha channels so it should be easier to debug,
right? However, as I debug, FB5 just throws up error after error where
there is no line number - it says 695 but the error is in a file that is
only 159 lines long, or variable name, or any idea of the problem! Am I
missing a trick on working out the compilation error?

This is one of the error messages

Error in _2_OpenGL2D.glbl...OpenGL2D.m.m at line 695
incompatible types in assignment in fn 'main' [line 695 of
_2_OpenGL2D.glbl...OpenGL2D.m.m]